Oar-lock



(No Model.)

J. VINCENT.

OAR LOOK.

No. 262,834. Patented Aug. 8, 1882.

N. PETERS. Pmo-uxm n ur. WW II. c.

UNITED STATES PATENT Grates.

JOHN VINCENT, OF ST. JAMES, MICHIGAN.

OAR-LOCK.

SPECIFICATION forming part of Letters iatent No. 262,334, dated August 8, 1882. Application filed April 26, 1882. (No model.)

To all whom it may concern Be it known that I, JOHN VINCENT, of St. James, in the county of Manitou and State of Michigan, have invented new and useful Improvements in ROWlOGliS; and I hereby declare that the following is afull, clear, and exact description thereof, reference being bad to the accompanying drawings, which form a part of this specification.

The nature of this invention relates to certain new and useful improvements in the construction of rowloclrs of that class wherein thole-pins are employed; and the invention consists in the peculiar construction, arrangement, and combination of the parts, all as more fully hereinafter set forth.

In the accompanyingdrawings,Figure 1 is a vertical sectional view of my improvement. Fig. 2 is a bottom view of the same.

A represents a plate,which is designed to be rigidly secured to the gunwales of a boat by any proper means. This plate is provided with the studs a, between which is formed the semicircular recess b, in which the oar when in use is designed to rest.

B represents the thole-pins, which are hollow a portion of their length and extend down through the studs a, each of the thole-pins inclosing coil-springs O,the lower endsot' which rest upon stops 6!, which are secured to the plate A in the recesses c in the under face thereof, the thole-pins being slotted at 00, so that they can be depressed within the studs a, as hereinafter described,while a suitable opening through the lower end of the thole-pins prevents their being thrown outby the expansion of the springs O.

D represents a stop-bar, placed longitudinally in the recess 0, and is designed to engage with notches in the side of the thole-pin when the latter is depressed, so as to retain the tholepin in such depressed position, ing operated by a suitable spring,

this barD be- E. This bar I) is also provided with across-bar, F, whichis secured to said bar Databoutthe center thereof, the ends of the bar F projecting slightly through the walls of the recess in the bottom of the plate A.

In practice the thole-p.ins,should they come in contact with any object or should a sailor fall upon them, will be depressed or give away under such contact, and not be liable to be broken, as where the tholepiu is used as in the ordinary manner, and when not in use they can be depressed within the studs 1), when the spring stop-barD will engage with a recess in the side of each thole-pin, as shown in dotted lines at y i ,Fig. 2,and retain them in such depressed position, and they are not liable to be lost, and are ready for use at any moment by releasing their engagement with the stopbar.

What I claim as my invention is '1. A rowlock having two vertically-sliding thole-pins supported on springs, substantially as and for the purpose specified.

2. In a rowlock, the combination, with the plate A, of the sliding thole-pins B, and the springs O, substantially as described.

3. In a rowlock, the combination, with the plate A, of the hollow sliding thole-pins B, having slots w, the stops (1, the springs O, and a suitable locking device, substantially as described.

4. In arowlock, the combination, with the plate A and the studs a thereof,of the hollow sliding thole-pins B, having slots 00, the stops d, the springs U, the bar D, adapted to engage with recesses in the thole-pins at y, the bar F, and a spring, E,all constructed and operating substantially as and for the purpose specified.

JOHN VINOENT.

Witnesses:

WILLIAM GIBSON, HARRISON MILLER. 

